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Long-Term Debt (Tables) | 12 Months Ended
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Dec. 31, 2017
Debt Disclosure [Abstract] |
Schedule of maturities of long-term debt | Long-term debt is listed below:
December 31, |  | 2017 |  | 2016
(In thousands) |  | Outstanding Balance |  | Average Rate |  | Outstanding Balance |  | Average Rate
Total Federal Home Loan Bank advances by year of maturity: |  |  |  |  |  |  |  |
2017 |  | $ | — |  |  | — | % |  | $ | 50,000 |  |  | 1.25 | %
2018 |  | 150,000 |  |  | 2.04 | % |  | 150,000 |  |  | 2.04 | %
2019 |  | 100,000 |  |  | 1.92 | % |  | 75,000 |  |  | 1.96 | %
2020 |  | 50,000 |  |  | 2.04 | % |  | 25,000 |  |  | 2.14 | %
2021 |  | 100,000 |  |  | 1.96 | % |  | — |  |  | — | %
2022 |  | — |  |  | — | % |  | — |  |  | — | %
Thereafter |  | 100,000 |  |  | 3.40 | % |  | 100,000 |  |  | 3.40 | %
Total |  | $ | 500,000 |  |  | 2.27 | % |  | 400,000 |  |  | 2.27 | %
Total broker repurchase agreements by year of maturity: |  |  |  |  |  |  |  |
2017 |  | — |  |  | — | % |  | 300,000 |  |  | 1.75 | %
Total |  | $ | — |  |  | — | % |  | $ | 300,000 |  |  | 1.75 | %
Total combined long-term debt by year of maturity: |  |  |  |  |  |  |  |
2017 |  | — |  |  | — | % |  | 350,000 |  |  | 1.68 | %
2018 |  | 150,000 |  |  | 2.04 | % |  | 150,000 |  |  | 2.04 | %
2019 |  | 100,000 |  |  | 1.92 | % |  | 75,000 |  |  | 1.96 | %
2020 |  | 50,000 |  |  | 2.04 | % |  | 25,000 |  |  | 2.14 | %
2021 |  | 100,000 |  |  | 1.96 | % |  | — |  |  | — | %
2022 |  | — |  |  | — | % |  | — |  |  | — | %
Thereafter |  | 100,000 |  |  | 3.40 | % |  | 100,000 |  |  | 3.40 | %
Total |  | $ | 500,000 |  |  | 2.27 | % |  | $ | 700,000 |  |  | 2.05 | %
Prepayment penalty |  | — |  |  | — |  |  | (5,719 | ) |  | — |
Total long-term debt |  | $ | 500,000 |  |  | 2.27 | % |  | $ | 694,281 |  |  | 2.07 | %

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- Definition Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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